[PATCH v3 2/3] timers: Use __raise_softirq_irqoff() to raise the softirq.

From: Sebastian Andrzej Siewior
Date: Wed Nov 06 2024 - 10:04:44 EST


As an optimisation use __raise_softirq_irqoff() to raise the softirq.
This is always called from an interrupt handler, interrupts are already
disabled so it can be reduced to just or set softirq flag and let
softirq be invoked on return from interrupt.

Use __raise_softirq_irqoff() to raise the softirq.

Reviewed-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
kernel/time/timer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index 0fc9d066a7be4..1759de934284c 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -2499,7 +2499,7 @@ static void run_local_timers(void)
*/
if (time_after_eq(jiffies, READ_ONCE(base->next_expiry)) ||
(i == BASE_DEF && tmigr_requires_handle_remote())) {
- raise_softirq(TIMER_SOFTIRQ);
+ __raise_softirq_irqoff(TIMER_SOFTIRQ);
return;
}
}
--
2.45.2